(Optional) Create a user

This topic describes how to create a regular user and grant sudo privileges to the user.

If you are an individual user, you can deploy the cluster as the root user and skip this step. If you are an enterprise user, we recommend that you create a regular user on the machine to ensure security. You can create your commonly used account as needed.

Follow these steps to create a user. The following example creates a user named admin.

1. Run the following command to create the admin account.

   [root@test001 ~]# useradd -U admin -d /home/admin -s /bin/bash
   [root@test001 ~]# chown -R admin:admin /home/admin
   

2. Run the following command to set a password for the admin account.

   [root@test001 ~]# passwd admin
   

3. (Optional) Grant sudo privileges to the admin account.

   Run the following command to open the /etc/sudoers file:

   [root@test001 ~]# vim /etc/sudoers
   

   Add the following line at the end of the /etc/sudoers file:

   ## Same thing without a password
   # %wheel        ALL=(ALL)       NOPASSWD: ALL
   admin       ALL=(ALL)       NOPASSWD: ALL
   

4. Run the following command to check the permissions of the cluster-related file directories.

   This example uses the data directory:

   [root@test001 data]# ls -al
   

   The expected output is as follows:

   drwxr-xr-x 2 admin admin 4096 Feb 9 18:43 .
   drwxr-xr-x 2 admin admin 4096 Feb 9 18:43 log1
   

   If the admin user does not have the required permissions for the related files after checking the directory permissions, you can run the following command to change the file owner:

   [root@test001 ~]# chown -R admin:admin /data
   [root@test001 ~]# chown -R admin:admin /redo
   

   Here, /data and /redo are example mount directories. You need to replace them with your actual mount directories.